视频

第一步：导入支持视频播放的框架AVFoundation.framework,引入头文件

#import <AVFoundation/AVFoundation.h>

第二步：获取播放地址

//获取播放的地址

NSString *playString = @"http://static.tripbe.com/videofiles/20121214/9533522808.f4v.mp4";

NSURL *playUrl = [NSURL URLWithString:playString];

 //AVPlayerItem播放内容载体

AVPlayerItem *item = [AVPlayerItem playerItemWithURL:playUrl];

 //player属性

self.avPlayer = [[AVPlayer alloc]initWithPlayerItem:item];

//AVPlayerLayer用于呈现画面

AVPlayerLayer *avLayer = [AVPlayerLayer playerLayerWithPlayer:self.avPlayer];

//配置播放页面

 //设置显示图层是视频的宽高并播放内容自动适应播放窗口的大小

avLayer.videoGravity = AVLayerVideoGravityResizeAspect;

avLayer.frame = self.view.bounds;

//添加到父视图layer上

[self.view.layer addSublayer:avLayer];